villebro commented on a change in pull request #13086:
URL: https://github.com/apache/superset/pull/13086#discussion_r577344279
##########
File path: superset/viz.py
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@@ -824,7 +824,8 @@ def get_data(self, df: pd.DataFrame) -> VizData:
return dict(
records=pt.to_dict(orient="index"),
columns=list(pt.columns),
- is_group_by=len(fd.get("groupby", [])) > 0,
+ # "groupby" may not exist in fd or it may exist and be None
+ is_group_by=len(fd.get("groupby") or []) > 0,
Review comment:
I agree that this is better. However, while we're at it, I think it's
more typical to check truthiness of the key in instances like this rather than
`len`. Something like this should do the same thing if `fd.get("groupby")` is
expected to return `Optional[List[Any]]`: `is_group_by=True if
fg.get("groupby") else False`
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